Frequencies for first 10,000 rows of prov3495 variable in pos2001 dataset :

       srv: |
   clinical |
lab-offsite |
  -resident |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,345       73.45       73.45
          N |      2,041       20.41       93.86
          Y |        614        6.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016